Overland Storage SnapServer Administrator's Manual page 89

SnapServer GuardianOS 7.2 Administrator's Guide
same RAID will result in wasted capacity. Also, do not mix drives of different rotational speeds
in the same slot column. See
and unsupported drive configurations.
For example, if a RAID is configured with the drives listed in the following table, some
capacity of the larger drives will go unused.
4. Select an option for spares:
• I do not want a hot spare – No spare will be created.
• I want a local spare – A local spare will be usable only by this RAID set.
• I want a global spare – A global spare is usable by any RAID set.
For more information about spares, see
5. Click Next.
10400317-003 05/2012
Do not mix drives of different capacity in a RAID 1, 5, 6, or 10 set. Because all
CAUTION:
drives within a RAID must be the same capacity, using mixed-capacity drives in the
Drive Raw Capacity
Drive1 750 GB
Drive 2 750 GB
Drive 4 1 TB
Drive 6 2 TB
©2010-12 Overland Storage, Inc.
"Adding Disk Drives" on page 6-28
Actual Used Capacity
750 GB
750 GB
750 GB
750 GB
"Manage Global Spares" on page
RAID Sets
for illustrations of supported
Usage
100%
100%
75% of 1 TB
38% of 2 TB
5-12.
 5-6